Extra Training Provides a Strong Baseline for CLIP

Alaa Khaddaj, Hadi Salman, Andrew Ilyas, Guillaume Leclerc, Aleksander Madry

Keywords: clip, undertraining

Abstract: Contrastive Language-Image Pretraining (CLIP) models exhibit good performance on a range of vision tasks. To improve the performance of this class of models even further, several works have proposed to modify the CLIP training procedure. In this work, we show that it is possible to achieve substantial gains using a much simpler strategy. Specifically, existing CLIP models---especially those trained on smaller datasets---tend to be undertrained. As a result, simply extending the training procedure according to a simple heuristic can significantly improve the performance of CLIP models.

Submission Number: 25